Surname Senau (Senau 
) , in all the world, is a rare last name. The cognomen Senau is characteristic of Botswana, where it is quite a rare surname, Malaysia, where it is a very rare surname, and Indonesia. Very seldom, Senau is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Senau | Botswana, Malaysia, India, Indonesia, South Africa |